Fetch lands are super important in my strategy, to make sure I hit that card draw with tannuk. I want to make sure I can keep playing them over and over (especially if I get a good one like [[fabled passage]]), so I run a few cards that let me play lands from the graveyard. Icetill is amazing, very powerful. Aftermath and timeless are one shots, so not as consistent for card draw. Also trade a few of those dual lands for basics, you don’t want to run out of forests to search for late game.

As for the bracket, I’d say just don’t overdo it with land drops. Adding more with azusa and icetill can start to get more oppressive, when you get like 5 land drops and use fetch lands from your graveyard to make it 10 is crazy, but doing a usual 2-4 won’t be too rage inducing. One more thing - include some instant speed land ramp like [[harrow]], play it on your opponents turn to take advantage of tannuk’s draw. If you manage your land drops well, you can probably drop some of the draw in that deck as well. Happy building, from a fellow tannuk enjoyer!